## AMB **IENT AIR MONITORING NETWORK PLAN 20**  **1 2** 

**STATE OF NEVADA DIVISION OF ENVIRONMENTAL PROTECTION**  **BUREAU OF AIR QUALITY PLANNING**

Contact: Daren Winkelman Ambient Monitoring Program Bureau of Air Quality

Planning 901 S. Stewart Street, Suite 4001 Carson City , Nevada89701 (775) 687
- 9342 or (775) 687
- 6396 fax Email: dwinkelman@ndep.nv.go vii 

### Table of Contents **List of Figures and**  **Tables ...................................................**  **............ ...**  **ii i**  **Acronyms and Abbreviations ...........................**  **............ .........**  **......... ...**  **i v**  **Overview ..........................................**  **................................. ......**  **.... 1**  **Goals .............................................**  **...................... .........**  **. ...**  **...... .....**  **1 Background**  **................................. ......................**  **............ ...**  **......... ...**  **2 Network Design**  **............................... .................**  **........................................ ..............**  **. 3**  **Minimum Monitoring Requirements....................................... .........**  **... 4**  **Changes in Monitoring Network............................................. .........**  **... 5**  **Purpose of Monitors......................................................... ..**  **... ......**  **.... 6**  **Overview of Monito red Parameters**  **.......................................... ......**  **.... 7**  **Site Information .....**  **. .................................................................**  **............... .**  **............. 10**  **Appendix A........................................................................ ............**  **. 28**  **Appendix B ...............................................................................**  **............. 29**  **Appendix C........................................................................ ......**  **.... 30** iii 

### List of Figures **Figure 1**

**– Site Map**  **............................................................ .........**  **.... 9**  **Figure 2**

**– Elko**  **Grammar School**  **.......................................... .........**  **.... 11**  **Figure 3**

**– West End Elementary School**  **................................. .........**  **.... 13**  **Figure 4**

**– Harvey’s Casino and Resort**  **.................................... .........**  **... 15**  **Figure 5**

**– Fernley Intermediate School**  **.................................... ............**  **.... 1**  **7 Figure 6** 

**– 3300 E. Fifth Street**  **............................................. .........**  **..... 1**  **9 Figure**  **7**

**– Church Site**  **......................................................... ......**  **...... 2**  **1 Figure**  **8**

**– Manse Elementary**  **................................................ ......**  **...... 23**  **Figure 9** 

**– 145 Glen Oaks Street**  **.......................................... .........**  **... ...**  **25 Figure**  **10**

**– 8825 N. Linda**  **................................................... .........**  **..... 27** 



### List of Tables
**Table 1**

**– NDEP’s Ambient Air Monitoring Network**  **..................... ......**  **.... 4**  **Table 2 -**  **NDEP’s Minimum Monitoring Requirements by Pollutant... ......**  **... 5** iv 

### Acronyms and Abbreviations CAA : Clean Air Act AQS : Air Quality S ys tem BAQP: Bureau of Air Quality Planning BAM : Beta Attenuation Monitor CFR: Code of Federal Regulations CO: Carbon M onoxide DCNR: Department of Conservation and Natural Resources FEM : Federal E quivalent M ethod FRM: Federal Reference M ethod IMPROVE: Interagency Monitoring of Protected Visual Environments NAAQS : National Ambient Air Quality Standard NAC: Nevada Administrative Code NDEP: Nevada Division of Environmental Protection O 3 : Ozone PM: Particulate M atter (2.5 or 10 microns ) SLAMS: State and Local Air M onitoring S tation SPM S : Special P urpose M onitoring Station USEPA: United States Environmental Protection Agenc yv 

### This Page Intentionally Left Bl ank1 

### Overview The monitoring program of the Nevada Division of Environmental Protection (NDEP) operates an ambient air quality monitoring network of gaseous and particulate pollutant monitors. The monitors are located in small communities throughout rural Nevada. In the metropolitan areas of Reno and Las Vegas; the Washoe County District Health Department, Air Quality

Management Division and the Clark County Department of Air Quality and Environmental Management operate and maintain their respective monitoring networks separate from NDEP and submit their Network Plan independentl y to the United States Environmental Protection Agency (US EPA)
. NDEP regulates air quality to protect public health and the environment. Monitoring data is a crucial component of regulations used to determine compliance with the USEPA primary and secondary air quality standards. Other important uses of these monitors include: support and issuance of air quality

forecasts, support of long
- term health assessments, and tracking long
term air quality both to gauge effectiveness of emission control and abatement strategies and to quantify

accuracy of ambient pollutant monitoring
.



### Goals NDEP created an ambient air quality monitoring program to provide useful and accurate information on air quality, which i s used to evaluate the success of the State’s air quality programs. The C lean Air Act of 1970 , and subsequent amendments , defines air quality standards for various air pollutants necessary to protect the public from injurious pollution concentrations. Air pollution concentrations that exceed the National Ambient Air Quality Standard (NAAQS) can cause a public health hazard, nuisance, anno yan ce, or damage to flora, fauna and personal property. The NAAQS, published by the US EPA, can be found in 40 Code of Federal Regulations ( CFR) Part 50 , which defines the levels of air quality necessary

to protect human health and welfare. An area i s considered to be in nonattainment for a pollutant if it has violated the NAAQS for that pollutant. The CFR includes procedures for evaluating measured air quality2

against the NAAQS. State air quality standards can be found in Nevada Administrative Code (NAC) 445B.22097. 

### Back**ground** The State of Nevada has three jurisdictions which independentl y manage their own air programs as designated by s tatute : Department of Conservation and Natural Resources (DCNR), Division of Environmental Protection (NDEP), Bure au of Air Quality Planning (BAQP) ; Washoe County District Health Department, Air Quality Management Division; and Clark County

Department of Air Quality and Environmental Management. State agencies that conduct ambient air monitoring using State and Local Air Monitoring Stations ( SLAMS ) or Special Purpose Monitoring Stations ( SPMS ) , must use Federal Reference Methods (FRM) or Federal Equivalent Methods (FEM) that comply with federal quality assurance requirements listed in 40 CFR 58 , Appendix A. Inconjunction with the Network Plan, a BAQP quality assurance plan was developed to form the framework for planning, implementing, assessing and reporting work performed b y the BAQP and for implementing quality

assurance and quality control protocols
. Th e Ambient Air Monitoring Program Quality Assurance Project Plan (QAPP) was developed to address quality management as well as quality assurance. The QAPP defines the policies, procedures, specifications, standards, and documentation necessary to: 1) provide data of adequate quality

to meet monitoring objectives, and 2) minimize loss of air quality data due to malfunctions or out
- of
- control conditions. As part of the QAPP, the Quality Management Plan (QMP) describes the organizational structure, functional responsibilities of management and staff, lines of authority, and required interfaces between planning, implementing, assessing and reporting activities involving environmental data operations. Additionally, the BAQP has developed ambient monitoring guidelines in order to ensure that ambient air quality

data collected , at regulated facilities in the State , are of the high est quality and conform to federal requirements for quality assurance listed under 40 CFR 58.3

Ambient air quality

monitoring data must be certi fied on an annual basis as accurate and complete. The certification process begins with the complete submittal of all SLAMS data to the federal Air Quality

S ys tem (AQS) for the calendar year. Submittal of data into AQS for 20 10 has been accomp lished . BAQP is planning on completing the entry of 20 1 1 data into AQS by the May 1, 2012 , deadline
. Precision and accuracy reports and certification of that data should also be submitted within that time frame. 

### Network **Design** There are currently nine ambient air quality monitoring stations in Nevada under the jurisdiction of NDEP
. Air quality monitoring is represented entirel y b y SLAMS
. The ozone monitoring conducted b y NDEP is done on a seasonal basis from April 1 to October 3 1 of each ye ar. The EPA ’s approval of a seasonal ozone monitoring schedule for NDEP is documented in Appendix A. There are two meteorological stations, one in Carson City and the other in Pahrump. These are used to confirm the local meteorological data from the monitoring stations
. In addition to these three independent monitoring networks, air quality monitoring is conducted through the Interagency Monitoring of Protected Visual Environments (IMPROVE) network b y the federal land management agencies. There are two IMPROVE monitoring sites in Nevada, at the Jarbidge Wilderness area and Great Basin National Park, Lehman Caves.
The following table shows the locations and typ es of monitors operated b y NDEP.4 

### Table 1 **: NDEP’**  **S A**  **mbient A** **ir M**  **onitoring N**  **etwork**
Location Ozone Carbon Monoxide PM10 Elko 1 (SLAMS) Fallon 1 (SLAMS) Stateline
- Harvey’s 1 (SLAMS) Fernley 1 (SLAMS) Carson City
- 5th Street 1(SLAMS) Pahrump
- Church Site 1 (SLAMS) Pahrump
- Manse Elementary 1 (SLAMS) Pahrump
- Glen Oaks 1 (SLAMS) Pahrump
- Linda Street 1 (SLAMS) Total 3 1 5 SLAMS

– State and Local Air Monitoring Station 

### Minimum Monitoring Requirements The USEPA provides minimum site requirements for ozone and particulate matter based on metropolitan statistical area (MSA) population. The NDEP’s air monitoring network meets or, in most cases, exceeds the minimum network requirements. The monitors currently required in the NDEP monitoring network b y the USEPA are located in Stateline (CO), Carson City

(O 3 ), Fallon (O 3 ), Fernl ey (O 3 ) and Pahrump (PM 10 ). The Stateline monitoring site is a continuation of a highest concentration site started by the California Air Resources Board (CARB). Through a Maintenance Plan with USEPA, monitoring and maintenance of this site was assumed by NDEP in August 2006. The four PM 10 monitoring sites in Pahrump are required through a Memorandum of Understanding (MOU) between NDEP, USEPA, Nye County and the Town of Pahrump. Otherwise , according to 40 CFR Part 58 Appendix D: Tables D
- 4 and D
- 5 ; sections 4.2, 4.3.2, 4.3.3 , 4.4.2 and 4.5, additional monitoring for criteria pollutants is not presently required. The following table outlines the minimum required monitors within the NDEP ambient air monitoring network
.

.5



### Table 2: Minimum Monitoring Requirement **s by Pollutant** 

*B ased on 40 CFR Part 58 Appendix D: Tables D
- 4 and D
- 5; sections 4.2, 4.3.2, 4.3.3, 4.4.2 and 4.5, additional monitoring for criteria pollutants is not presently required. Additionally, based on the 2008 Lead NAAQS Final Rule, 2010 SO 2 NAAQS Final Rule and the 2010 NO 2 NAAQS Final Rule, NDEP is not required to monitor for these criteria pollutants.



### Changes in Monitoring Network Over the next 12 months, two significant change s will occur throughout the monitoring network that will impact data submittal for the 2012 ye ar. NDEP will be relocating the ozone monitor currentl y located at the Carson City Maintenance Yard , to a comparable location 2.5 miles west at a vacant lot with access from Carson Street. This move is necessitated by the city of Carson City re -purposing use of this location
. Currently, there are plans and agreements for NDEP to begin moving equipment to this new site with objective to gain 9 months of collocated data until March 2013, which is the approximate date that the NDEP must move from the Carson City Maintenance Yard. The USEPA will be notified when data collection and submittal at the new monitoring site is commenced. The second change will be the removal of the Stateline CO monitor
. The NDEP plans to discontinue CO monitoring **Pollutant Minim** **um**

**# of Monitors**  **Required # of** 

**Monitors Active**  **# of**

**Monitors needed**  **Location MSA/CSA**  **County(ies) County**  **Pop. (2009)**  **Design**

**Values**

Ozone 3 3 0 Carson City Carson City MSA Carson City 55,176 66 ppb (200 9
- 20 11 ) Fallon Fallon MSA Churchill 24,897 59 ppb (200 9
- 20 11 ) Fernley Rural Lyon 52, 641 64 ppb (200 9
- 20 11 ) CO 1 1 0 South Lake Tahoe Sacramento
- Arden
Truckee CSA Douglas 45, 464 3. 1 ppm (20 10
- 20 11 ) Lead * 0 0 0 N/A N/A N/A N/A N/A SO2 * 0 0 0 N/A N/A N/A N/A N/A NO2 * 0 0 0 N/A N/A N/A N/A N/A

PM10 4 5 0 Elko (1) Elko MSA Elko 47,896 0. 8 (200 9
- 20 11 )

Pahrump (4) Pahrump MSA/Las

Vegas
- Paradise
Pahrump CSA Nye 44,324 Manse = 2.5 Church = 0. 0 Glen Oaks = N/A Linda Street = 0. 0 (200 9
- 2 0 11 ) Total 8 9 06

at Stateline (located at Harvey ’s Resort and Hotel on Hwy 50) by June 30, 2012. The NDEP concludes that 33 ye ars of clean data, all of it under 80 percent of the NAAQS and most recentl y at 34 percent, with on
- going downward trends is suffi cient evidence of continued attainment through 2024 and satisfies 40 CFR 5 8 .14 requirements for discontinuance. In 2011, NDEP was informed that we had to relocate our PM 10 monitor located at the Manse School in Pahrump due to the school closing. In February 2011, NDEP submitted a letter to the EPA requesting approval to relocate the monitor
. In March of 2011, NDEP received approval to move the existing monitor to the Nye C ounty School District building. However, the Pahrump School District found a new use for the school allowing NDEP to remain at the existing site. At this time, NDEP will continue to monitor at the Manse School. I f needed, NDEP has access to the Nye County School District building for our back
- up site. For the next year, NDEP will be evaluating the need to establish a PM 2.5 monitoring network. Over the next five ye ars, through 201 7 , NDEP will evaluate our current network to determine if any new sites or monitors need to be added to the existing monitoring network.



### Purpose of Monitors The purpose of the Nevada Air Monitoring Network is to provide useful and accurate information on air quality, which is used to evaluate the success of the State’s air quality programs. To accomplish this task , the NAAQS is used to identify the criteria pollutants : CO (Carbon Monoxide) , Pb (L ead) , NO 2 (Nitrogen Dioxide) , O 3 (Ozone) , particulate matter (PM 10 and PM 2.5 ), and SO 2 (Sulfur Dioxide). Measuring pollutant concentrations in outdoor air and comparing the measured concentrations to corresponding standards help to classify ambient air quality

status of an area as either attainment or nonattainment. The NAAQS is broken down into primary and secondary standards. Primary

standards are those established to protect public health. Secondary standards are those established to protect the public welfare from adverse pollution effects on soils, water, vegetation, man
- made materials, animals, weather, visibility, climate, prop erty, and the economy. The scientific criteria upon which the standards are based are reviewed periodically by the USEPA, wh o may

reestablish or change the standards according to its findings.7

A pollutant measurement that is greater than the ambient air quality standard for its specific averaging time is called an exceedance. This is not necessarily a sy nony m for a violation; for each pollutant there are specific rules about how many exceedances are allowed in a given time period before a pattern of exce edances is considered to be a violation of the NAAQS . A violation may

result in regulatory

action to clean
- up the area’s air. Exceptions are made to allow for certain limited exceedances of the standard that may occur, for example, during an unusual weather pattern or wildfire (exceptional events) . Regulatory action is ty

picall y reserved for cases where the exceedances are too large or too frequent. Historically, ambient air quality monitoring b y BAQP has looked at trends in air quality to aid in the local planning process. Traffic, wood burning stoves, and growth related activities have prompted air quality monitoring in specific areas around the State. Data from these sites has led to public education and outreach to communities identifying the potential health effects caused b y air pollutants in the environment. Ordinances controlling surface area disturbances and other related activities that produce dust have also been implemented with the help of the monitoring sites
.



### Overview of Monitored Param **eters Carbon Monoxide (CO)**  CO is a poisonous gas that, when introduced into the bloodstream, inhibits the delivery of oxygen to body tissue. The health risk is greatest for individuals with cardiovascular disease. **Ozone (O** 3 **)** Ground
- level ozone , or photochemical smog, is not emitted into the atmosphere as ozone, but rather is formed b y the reactions of other pollutants. The primary pollutants entering into this reaction, VOCs and oxides of nitrogen, create ozone in the presence of sunlight. Ozone is a strong irritant of the upper respiratory s ys tem and also causes damage to crops. **Particulate Matter (PM** 10**)** Particulate matter with an aerodynamic diameter of 10 microns or less is emitted from transportation and industrial sources. Exposure to particle pollution is linked to a variety of significant health problems ranging from aggravated asthma to premature death in people with heart and lung disease.8

**Fine Particulate Matter (PM**2.5 **)** Fine particulate matter with a diameter of 2.5 microns or less is created primarily from industrial processes and fuel combustion. These particles are breathed deeply into the lungs. Exposure to particle pollution is linked to a variety of significant health problems ranging from aggravated asthma to premature death in peo ple with heart and lung disease.9 

### Site Map **Figure 1** : A map showing the locations of the monitoring stations m aintained in NDEP’s network.

__________________________ 1 Map template from: http://geology.com/state
- map/maps/nevada
- county- map.gif Carson City

Stateline

Pahrump Elko Fernley

Fallon10



### Elk**o: Detailed Site Information** Prior to 1992 the location for this sampler was the fire station at 723 Railroad Street (ID #32
- 007
- 003) in a commercial area. In November of 1992 this continuous PM 10 mo nitoring site was re located to the roof of the State offices at 850 Elm Street in a predominantly residential area. The monitoring objective wa s to determine typical concentration/population oriented. The manual sampler was replaced with a continuous (TEOM) PM 10 mo nitor in December 1998. In September 2008, the TEOM monitor was closed and a new BAM 1020 monitor was sited at the Elko Grammar School #2
.

**Pollutant PM10 /81102**  **Monitor Objective Typ. Conc./Population Oriented**  **Spatial Scale Neighborhood**  **Sampling Method Met One BAM**  **- 1020**  **Analysis Method EQPM** **- 0798**  **- 122**  **Start Date 09/25/2008**  **Operation Schedule Continuous**  **Sampling Season All Year**  **Probe Height 2.6 Meters**  **Dist. fm. supporting structure Vertical Distance =1.2**  **meters Dist. fm. obstructions on roof**  **N/A Distance fm. trees**  **27 Meters Distance to furnace or incinerator flue**  **N/A Unrestricted airflow**  **360 degrees Probe material**  **N/A Residence time**  **N/A Changes in the next 18 months?**  **No Suitable for PM 2.5**  **comparison? N/A**  **Frequency of flow rate verification Monthly**  **Frequency of one point QC check (gaseous) N/A**  **Last Annual Performance Evaluation (Gaseous) N/A**  **Last two semi -**  **annual flow rate audits for PM 12/12/11**  **05/02/2012 Site Name**  **Elko AQS ID**  **32 -**  **007 -**  **0005 GIS Coordinates**  **Lat +40.838350 Long**  **- 115.766029**  **Location Elko Grammar School #2**  **Address 1055 7**  **th Street**  **County Elko**  **Distance to Road 18 Meters**  **Traffic Count**  **1400 AADT (2009) Station #0070203 Groundcover**  **Asphalt Representative Area**  **Elko MSA**11



### Figure 2 : Elko Grammar School #2, 1055 7th Street , Elko, NV
. PM 10 Monitor12



### Fallon: Detailed Site Information The ozone monitoring site at 280 South Russell Street is at the West End Elementary School in a residential neighborhood that may be affected by agricultural operations surrounding the City of Fallon. The monitoring objective is to determine typical concentration/population orientation. PM 10 sampling commenced at this site in M ay 1993 and was discontinued at the end of June 1998 . Monitoring for ozone began in October 1999 as an ozone transport site downwind of Reno and Fernley

**Pollutant O3**  **/44201 Monitor Objective**  **Typ. Conc./Population Oriented**  **Spatial Scale Neighborhood**  **Sampling Method Teledyne API Model 400E**  **Analysis Method EQOA** **- 0992**  **- 087**  **Start Date 10/01/1999**  **Operation Schedule Seasonal**  **Sampling Season April thru October**  **Probe Height 3.2 Meters**  **Dist. fm. supporting structure**  **1 meter from wall Dist. fm. obstructions on roof**  **N/A Distance fm. Trees**  **Greater than 10 meters Distance to furnace or incinerator flue**  **N/A Unrestricted airflow**  **180 Degrees Probe material**  **Teflon Residence time**  **10 seconds Changes**  **in the next 18 months? No**  **Suitable for PM 2.5 comparison? N/A**  **Frequency of flow rate verification N/A**  **Frequency of one point QC check (gaseous) Semi** **- monthly**  **Last Annual Performance Evaluation (Gaseous) 09/22/2011**  **Last two semi -**  **annual flow rate audits for PM N/A**  **Site Name Fallon**  **AQS ID 32**  **- 001**  **- 0002**  **GIS Coordinates Lat +39.472471**  **Long -**  **118.783624 Location**  **West End of Elementary School**  **Address 280 South Russell Street**  **County Churchill**  **Distance to Road 65 Meters**  **Traffic Count 410 AADT (2009) Station #0010135**  **Groundcover Dirt and Gravel**  **Representative Area Fallon MSA** 13



### Figure 3 : West End Elementary School, 280 S. Russell Street , Fallon, NV. Ozone Monitor14



### Harvey’s **C asino**  **and Resort : Detailed Site Information**  This is a “micro
- scale” monitoring site for carbon monoxide in the core of the Stateline casino hotel area at Lake Tahoe. The site is designed to monitor the highest CO concentrations at Lake Tahoe, and is, taken to be representative of the California and Nevada sides of the south shore casino district. Monitoring at this site began in October 1999 and was previously conducted by the California Air Res ources Board by multi
- agency cooperative agreement. Starting in July of 2006, NDEP took over the monitoring responsibility for this site under a maintenance agreement with EPA
. **Site Name Harvey’s Casino and Resort**  **AQS ID 32**  **- 005**  **- 0009**  **GIS Coordinates Lat**  **+38.960579 Long**  **- 119.941351**  **Location 1**  **st Level of parking garage facing HWY**  **Address Stateline NV 89449**  **County Douglas**  **Distance to Road 9 Meters**  **Traffic Count 24,000 AADT (2009) Station # 0050044**  **Groundcover Paved, asphalt and grass**  **Representative Area**  **Sacramento -** **Arden Arcade -**  **Truckee CSA or rural MSA Pollutant**  **CO/42101 Monitor Objective**  **Highest Concentration Spatial Scale**  **Micro Sampling Method**  **API Teledyne 300M Analysis Method**  **N/A Start Date**  **10/01/1999 Operation Schedule**  **Continuous Sampling**  **Season All Year**  **Probe Height 2.5 Meters**  **Dist. fm. supporting structure 1 Meter Horizontally**  **Dist. fm. obstructions on roof N/A**  **Distance fm. trees 4 Meters**  **Distance to furnace or incinerator flue N/A**  **Unrestricted airflow 180 Degrees**  **Probe material Teflon**  **Residence time 5 Seconds**  **Changes in the next 18 months? Yes (Discontinuation)**  **Suitable for PM 2.5 comparison? N/A**  **Frequency of flow rate verification N/A**  **Frequency of one point QC check (gaseous) Semi** **- monthly**  **Last Annual Performance Evaluation (Gaseous)**  **03/26/2012 Last two semi** **- annual flow rate audits for PM**  **N/A**15



### Figure **4 :**  **Harvey’s Casino**  **and Resort**  **Lak e Tahoe NV. CO Monitor** 16



### Fernley Intermediate School: Detailed Site Information O zone monitoring is done at the Fernley Intermediate School which is located at 320 Hardie Lane. This is an area of mainly residential and agricultural use. There has recently been a large growth of industry both upwind and dow nwind of this site. Monitoring for PM 10 at this site commenced on May 1995, to determine the agricultural and industrial source im pacts and population exposure. PM 10 sampling was discontinued in November 1998. O zone monitoring began at this site July 2007. However, o zone monitoring (SPMS) was previously conducted at the Fernley Volunteer Fire Department starting in October 1997 and discontinued on October 2003. **Site Name Fernley**  **AQS ID 32**  **- 019**  **- 0006**  **GIS Coordinates Lat +39.602787**  **Long -**  **119.247741 Location**  **Fernley Intermediate School Address**  **320 Hardie Lane County**  **Lyon Distance to**  **Road 119**  **Meters Traffic Count**  **1300 AADT (2009) Station # 0190119 Groundcover**  **Paved, cement, gravel and dirt Representative Area**  **Rural (Micropolitan Statistical Area) Pollutant**  **O3/44201 Monitor Objective**  **Typ. Conc./Population Oriented**  **Spatial Scale Urban**  **Sampling Method Teledyne API Model 400E**  **Analysis Method EQOA** **- 0992**  **- 087**  **Start Date 07/06/2007**  **Operation Schedule Continuous**  **Sampling Season April to October**  **Probe Height 7 Meters**  **Dist. fm. supporting structure Vertical Distance above 2.1 Meters**  **Dist. fm. obstructions on roof N/A**  **Distance fm. trees 15 Meters**  **Distance to furnace or incinerator flue N/A**  **Unrestricted airflow 360 Degrees**  **Probe material Teflon**  **Residence time 4 Seconds**  **Changes in the next 18 months? No**  **Suitable for PM 2.5 comparison?**  **N/A Frequency of flow rate verification**  **N/A Frequency of one point QC check (gaseous)**  **Semi -**  **monthly Last Annual Performance Evaluation (Gaseous)**  **09/22/2011 Last two semi** **- annual flow rate audits for PM**  **N/A**17



### Figure **5 :**  **Fernley Intermediate School, 320Hardie Lane Fernley NV PM**  **2.5 /Ozone**  **Monitor**18



### 3300 E. **5 th**  

### Street: Detailed Site Information This site is located at 3300 East Fifth Street near the Carson City Public Works Department maintenance yard in a transition area, adjacent to wetlands, the City yard, sewage treatment plant, residential neighborhood and the new highway extension of US 395 . The pollutants monitored included carbon monoxide and ozone (through 1989 ) and PM 10 (March 1991
- February 1997). The monitoring objective is to determine typical concentration/population oriented. In 2007, an existing meteorological station was restarted, and as previously stated, the ozone monitor from Long Street site wa s rel ocated to East Fifth Street. At the end of 200 9 , the PM 2.5 wa s relocated to this monitoring site.

**Pollutant Ozone/44201**  **Monitor Objective Typ. Conc./ Population Oriented**  **Spatial Scale Neighborhood**  **Sampling Method Teledyne API Model 400E**  **Analysis Method EQOA** **- 0992**  **- 087**  **Start Date 1/1/1989**  **Operation Schedule April** 

**– October**  **Sampling Season Seasonal**  **Probe Height 10 Meters**  **Dist. fm. supporting structure Vertical distance above 7 meters**  **Dist. fm. obstructions on roof N/A**  **Distance fm. trees N/A**  **Distance to furnace or incinerator flue N/A**  **Unrestricted airflow 360 Degrees**  **Probe material Teflon**  **Residence time 6 Seconds**  **Changes in the next 18 months? Yes**  **Suitable for PM 2.5 comparison?**  **N/A Frequency of flow rate verification**  **N/A Frequency of one point QC check (gaseous)**  **Semi -**  **monthly Last Annual Performance Evaluation**  **(Gaseous) 9/28/2011**  **Last two semi -**  **annual flow rate audits for PM N/A**  **Site Name East 5**  **th . Street**  **AQS ID 32**  **- 510**  **- 0002**  **GIS Coordinates Lat +39.167247**  **Long -**  **119.731702 Location**  **Carson City Address**  **3300 East 5 th**  **Street County**  **Carson Distance to Road**  **10 Meters Traffic Count**  **3,500 AADT (2009) Station #0250116 Groundcover**  **Dirt**

**– Asphalt Parking Lot**  **Representative Area Carson City MSA** 19



### Figure 6 : 3300 E. Fifth Street Carson City, NV Ozone/Met Site20



### Church: Detailed Site Information The Church Site began operation in 2004 to compl e me nt the existing three other sites in the Pahrump monitoring network. Monitoring is accomplished with a continuous beta attenuated monitor located in the southeast corner of the Catholic Church. This site represents the southern
- mo st monitoring in Pahrump Valley. The monitoring objective of this site is a significant source of PM 10 . The surrounding area represents res idential with little commercial, some native desert with a mix of dirt and paved roads. **Site Name Church**  **AQS ID 32**  **- 023**  **- 0013**  **GIS Coordinates Lat + 36.159639**  **Long -**  **115.996263 Location**  **Pahrump Address**  **781 E. Gamebird County**  **Nye Distance to Road**  **100 Meters**  **Traffic Count 1,100 AADT (2009) Station #0230010**  **Groundcover Desert**  **Representative Area Pahrump MSA; Las Vegas** 

**– Paradise** 

**– Pahrump MSA**  **Pollutant PM10/81102**  **Monitor Objective Significant Sources** 

**– Dry lake bed 6 miles**  **to the south Spatial**  **Scale Urban**  **Sampling Method Met One BAM 1020**  **Analysis Method EQPM** **- 0798**  **- 122**  **Start Date 2/14/2004**  **Operation Schedule Continuous**  **Sampling Season All Year**  **Probe Height 4 Meters**  **Dist. fm. supporting structure Vertical distance above 2 meters**  **Dist. fm. obstructions on roof**  **N/A Distance fm. trees**  **50Meters Distance to furnace or incinerator flue**  **N/A Unrestricted airflow**  **360 Degrees Probe material**  **Aluminum Residence time**  **N/A Changes in the next 18 months?**  **No Suitable for PM 2.5 comparison?**  **N/A Frequency of flow rate verification**  **Monthly Frequency of one point QC check (gaseous)**  **N/A Last Annual Performance Evaluation**  **(Gaseous) N/A**  **Last two semi -**  **annual flow rate audits for PM 11/3/2011**  **5/7/2012**21



### Figure 7 : Church Site, 781 E. Gamebird Pahrum p, NV PM 10 Monitor22



### Manse Elementary: Site Detailed Information The Manse site represents the monitoring objective for highest concentrations of PM 10 in Pahrump. This site replaces the Community Pool site, which at the time it was operating, rep resented the highest concentrations of PM 10 in Pahrump. Located at 1020 E. Wilson Road, the Manse Elementary site is located on the roof of the school and monitors for PM 10 using the continuous beta attenuation monitor. The area adjacent to this site repre sents mostly commercial, some residential, and is adjacent to the busiest activity area of Pahrump. This site is located downwind from residential construction developments that have cleared large parcels of ground for building, as well as agricultural are as that cultivate large areas of farm
- ground and raise livestock. Roads surrounding this site are both paved and dirt. **Site Name Manse Elementary**  **AQS ID 32**  **- 023**  **- 0014**  **- 81102**  **- 1**  **GIS Coordinates Lat +36.212787**  **Long -**  **115.994802 Location**  **Pahrump Address**  **1020 E. Wilson Road**  **County Nye**  **Distance to Road 50**  **Meters Traffic Count**  **11,000 AADT (2006 ) Station #023000**  **6 Groundcover**  **Gravel Schoolyard Representative Area**  **Pahrump MSA; Las Vegas**

**– Paradise** 

**– Pahrump MSA**  **Pollutant PM10/81102**  **Monitor Objective Highest**  **Concentrations Spatial Scale**  **Neighborhood Sampling Method**  **Met One BAM 1020 Analysis Method**  **EQPM -**  **0798 -**  **122 Start Date**  **11/17/2005 Operation Schedule**  **Continuous Sampling Season**  **All Year Probe Height**  **3.0 Meters Dist. fm. supporting structure**  **Vertical distance above 1 meter**  **Dist. fm. obstructions on roof N/A**  **Distance fm. trees 10 Meters**  **Distance to furnace or incinerator flue N/A**  **Unrestricted airflow 360 Degrees**  **Probe material Aluminum**  **Residence time N/A**  **Changes in the next 18 months? No**  **Suitable for PM 2.5 comparison? N/A**  **Frequency of flow rate verification Monthly**  **Frequency of one point QC check (gaseous) N/A**  **Last Annual Performance Evaluation (Gaseous)**  **N/A Last two semi** **- annual flow rate audits for PM**  **11/3/2011 5/7/2012** 23 

### Figure **8 :**  **Manse Elementary, 1020 E. Wilson Road Pahrump, NV PM 10 Monitor** 24



### Glen Oak**s : Site Detailed Information**  The Willow

Creek site was started in 2003 and wa s located at 1500 Red Butte on the roof of a building in which irrigation equipment for the golf cours e is housed. The monitoring objective of this site was to measure typical concentrations/population oriented of PM 10 using the beta attenuated monitor. The surrounding area adjacent to this site is fairway/golf course and residential structures. Due to clo sure of the golf course, the Willow Creek site wa s relocated to the Glen Oaks sewer treatment plant in 2009. The Glen Oaks site is a short distance away from the existing go lf course site and the monitoring objective did not change
. **Site Name Glen Oaks**  **AQS ID 32**  **- 023**  **- 0012**  **GIS Coordinates Lat +36.193469**  **Long -**  **116.007584 Location**  **Pahrump Address**  **145 Glen Oaks St. County**  **Nye Distance to Road**  **200 Meters Traffic Count**  **1,100 AADT (2009) Station #0230010 Groundcover**  **Grass /Gravel**  **Representative Area Pahrump MSA; Las Vegas** 

**– Paradise** 

**– Pahrump MSA**  **Pollutant PM10/81102**  **Monitor Objective Typ. Conc./ Population Oriented**  **Spatial Scale Neighborhood**  **Sampling Method Met One BAM 1020**  **Analysis Method EQPM** **- 0798**  **- 122**  **Start Date 11/20/2003**  **Operation Schedule Continuous**  **Sampling Season All Year**  **Probe Height 6.0 Meters**  **Dist. fm. supporting structure Vertical distance above 2 meters**  **Dist. fm. obstructions on roof N/A**  **Distance fm. trees 12 Meters**  **Distance to furnace or incinerator flue N/A**  **Unrestricted airflow**  **360 Degrees Probe material**  **Aluminum Residence time**  **N/A Changes in the next 18 months?**  **No Suitable for PM 2.5 comparison?**  **N/A Frequency of flow rate verification**  **Monthly Frequency of one point QC check (gaseous)**  **N/A Last Annual Performance**  **Evaluation (Gaseous) N/A**  **Last two semi -**  **annual flow rate audits for PM 11/3/2011**  **5/7/2012**25



### Figure **9 :**  **145 Glen Oaks St. ,**  **Pahrump, NV PM10 Monitor**26



### Linda Street: Site Detailed Information The Linda Street site was started in 2003 and is located at 8825 North Linda Street. The beta attenuated monitor is located on the roof of an old railroad box car and represents not only the northern
- most site in the Pahrump monitoring network, but the most rural area. There is some residential surrounding this site, but mainly native desert vegetation with little or no surface disturbances. The monitoring objective for this site is general background levels of PM 10 in Pahrump. **Site Name Linda Street**  **AQS ID 32**  **- 023**  **- 0011**  **- 81102**  **- 1**  **GIS Coordinates Lat +36.349408**  **Long -**  **116.031976 Location**  **Pahrump Address**  **8825 N. Linda County**  **Nye Distance to Road**  **20 Meters Traffic Count**  **2,2 00 AADT (2008) Station #0230008**  **Groundcover Desert**  **Representative Area Pahrump MSA; Las Vegas** 

**– Paradise** 

**– Pahrump MSA**  **Pollutant PM10/81102**  **Monitor Objective General Background**  **Spatial Scale Urban**  **Sampling Method Met One BAM 1020**  **Analysis Method EQPM** **- 0798**  **- 122**  **Start Date 5/3/2003**  **Operation Schedule Continuous**  **Sampling Season All Year**  **Probe Height 6.7 Meters**  **Dist. fm. supporting structure**  **Vertical distance above roof 3 meters**  **Dist. fm. obstructions on roof N/A**  **Distance fm. trees 10 Meters**  **Distance to furnace or incinerator flue N/A**  **Unrestricted airflow 360 Degrees**  **Probe material Aluminum**  **Residence time N/A**  **Changes in the next 18 months?**  **No Suitable for PM 2.5 comparison?**  **N/A Frequency of flow rate verification**  **Monthly Frequency of one point QC check (gaseous)**  **N/A Last Annual Performance Evaluation (Gaseous)**  **N/A Last two semi** **- annual flow rate audits for PM**  **11/3/2011 5/7/2012** 27



### Figure **10 : 8825 N. Linda Pahrump, NV PM 10 Monitor** 28 

### Appendix A. **Ozone Seasonality**

**A pproval Letter** 29 

### A**ppendix B. Manse PM10 Monitor Relocation A**  **pproval**30 

### Appendix **C .**  **Comment Submittal Information** The proposed 201 2 Ambient Air Monitoring Network Plan is posted on the NDEP website for review and comment for thirty (30) days. Comments may

be emailed to Daren Winkelman ( dwinkelman@ndep.nv.gov) or mailed to, Daren Winkelman Ambient Monitoring Program Bureau of Air Quality

Planning 901 S. Stewart Street, Suite 4001 Carson City , Nevada89701